Weirdest gig: Joined a local craft fair to hawk robotic services. My reasons were simple.

New software familiarity:

Siemens Step 7

Multisim

Autodesk

C/C++

Python

Cuda (barely)

Python

Powershell

Tensorflow ( barely)

Gimp

Unity (barely)

Visual C++

Arduino

RobotC

Putty

Vex

Roborealm

To learn: Keras, Torche, Rust, Java, Tensorflow, Betaflight

Target career: DARPA through AAC, then to Lockheed Martin through USGS or Dept. of Transportation, never retire and tinker at Moog. I used my 20s for retirement when I was able to truly enjoy debauched and cavalier adventures.